DokuWiki - Upgrade DokuWiki

Make a backup of your DokuWiki

tar zcpfv dokuwiki-backup.tar.gz /path/to/dokuwiki

NOTE: This will create the dokuwiki-backup.tar.gz backup.

Check for changes

Read the changelog to see if there are any special things to consider

Download the new version

Download the newest release from the download site.

cd ~
wget http://.../dokuwiki-xxxx-xx-xx.tgz

Unpack the distribution tarball

tar zxvf dokuwiki-xxxx-xx-xx.tgz

Upload/copy the files over your previous installation

Make sure to overwrite all files when prompted.

'cp' -af dokuwiki-xxxx-xx-xx/* /path/to/dokuwiki/

NOTE: The quotes on cp assure that it will run as is, even if an alias is set.

Check copied files ownership and permissions

<?php
 
if(function_exists('posix_geteuid')){
  // use posix to get current uid and gid
  $uid   = posix_geteuid();
  $usr   = posix_getpwuid($uid);
  $user  = $usr['name'];
  $gid   = posix_getegid();
  $grp   = posix_getgrgid($gid);
  $group = $grp['name'];
}else{
  // try to create a file and read it's ids
  $tmp = tempnam ('/tmp', 'check');
  $uid = fileowner($tmp);
  $gid = filegroup($tmp);
 
  // try to run ls on it
  $out = `ls -l $tmp`;
  $lst = explode(' ',$out);
  $user  = $lst[2];
  $group = $lst[3];
  unlink($tmp);
}
 
echo "Your PHP process seems to run with the UID $uid ($user) and the GID $gid ($group)\n"; ?>

Here are the most commonly used values for setting permissions on directories and files.

directories	files	result
0700	0600	read/write for owner only. Owner must be the same as the PHP process user.
0770	0660	read/write for owner and group. The PHP process user needs to be in the user group
0777	0666	read/write for everyone. Dangerous because everybody with access to the server may write and delete your files. Use only as a last resort on trusted machines, NOT on a cheap shared hosting server.

Delete all unused files

grep -Ev '^($|#)' data/deleted.files | xargs -n 1 rm -vf

Upgrade your template and plugins

Upgrade your template and plugins if necessary.

References

https://www.dokuwiki.org/install:upgrade

https://www.dokuwiki.org/install:unused_files

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